# Promolayer vs Fomo – Should a cart addition trigger an offer or become social proof?
Compare Fomo’s Shopify cart-event notifications with Promolayer’s cart-triggered incentives, discount costs, audience rules and measurement.
- Page: https://popuppapa.com/promolayer-vs-fomo/
- Published: 2026-11-05; updated: 2026-11-05
- Promolayer review: https://popuppapa.com/reviews/promolayer/index.md
- Fomo review: https://popuppapa.com/reviews/fomo/index.md
## What do you need your website to do next?
Someone adds a top to a cart. Promolayer can use that moment to show that shopper an offer. Fomo can record the addition and use the event in a notification. The first store is making a promise to the person who added the item. The second is deciding what other visitors should see about recent activity.
In our Fomo account the captured event contained the actual product link. In our Promolayer test the generated reward reduced a cart total. Either result can matter, but the first business question is whether an incentive belongs in the experience at all.
## How the comparison works
15 rounds compare both platforms against the same 196 capability criteria, with 100 points distributed across the sections. Each round explains the practical differences and adds to the running score. The table beneath each round shows how the points are awarded, with the source behind each verdict.
## Round 1: Formats & content
Weight: 9 points.
A wheel can retreat to a teaser after dismissal. A deadline or floating bar gives the store a smaller way to present an offer on a subsequent page. A notification template can show a product, a quantity or an active-visitor count. A site-wide theme controls its appearance while the event supplies the changing details.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Message | Not confirmed | (+0.64) | Promolayer: [Message](https://promolayer.io/en/notify-customers/), 2026-11-05 · Fomo: [Message](https://apps.shopify.com/fomo), 2026-11-05 |
| Flyby / slide-in | (+0.32) | (+0.32) | Promolayer: [Flyby / slide-in](https://promolayer.io/en/slide-in-popup/), 2026-11-05 · Fomo: [Flyby / slide-in](https://help.usefomo.com/article/413-understanding-the-theme-tab), 2026-11-05 |
| Promo bars | (+0.64) | Not confirmed | Promolayer: [Promo bars](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Teasers | (+0.64) | Not confirmed | Promolayer: [Teasers](https://promolayer.io/en/spin-to-win/), 2026-11-05 |
| Content carousel | Not confirmed | Not confirmed | — |
| Eye-catching | (+0.32) | (+0.32) | Promolayer: [Eye-catching](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Eye-catching](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Eye-catching](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Eye-catching](https://promolayer.io/en/pricing/shop/), 2026-11-05 · Fomo: [Eye-catching](https://help.usefomo.com/article/413-understanding-the-theme-tab), 2026-11-05; [Eye-catching](https://help.usefomo.com/article/413-understanding-the-theme-tab), 2026-11-05; [Eye-catching](https://help.usefomo.com/article/413-understanding-the-theme-tab), 2026-11-05; [Eye-catching](https://help.usefomo.com/article/413-understanding-the-theme-tab), 2026-11-05 |
| Countdown | (+0.64) | Not confirmed | Promolayer: [Countdown](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Button link | Not confirmed | Not confirmed | — |
| Copy coupon | (+0.64) | Not confirmed | Promolayer: [Copy coupon](https://intercom.help/promolayer/en/articles/13173261-how-to-add-a-static-coupon), 2026-11-05 |
| Dynamic text | Not confirmed | (+0.64) | Fomo: [Dynamic text](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05 |
| Mobile editor | (+0.64) | Not confirmed | Promolayer: [Mobile editor](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
Round score: Promolayer +3.86 (total 3.86), Fomo +1.93 (total 1.93).
## Round 2: Forms
Weight: 12.6 points.
The standard form has space for two custom fields alongside contact details. A dropdown and a text answer fit together on one screen. An email reply or a thank-you view follows submission. Fomo can turn a submission collected elsewhere into a notification. That connection does not establish a native newsletter signup form.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Email capture | (+0.32) | Not confirmed | Promolayer: [Email capture](https://promolayer.io/en/form-builder/), 2026-11-05 · Fomo: [Email capture](https://apps.shopify.com/fomo), 2026-11-05 |
| SMS capture | Not confirmed | Not confirmed | — |
| Phone field | (+0.32) | Not confirmed | Promolayer: [Phone field](https://promolayer.io/en/form-builder/), 2026-11-05 |
| Single choice | (+0.32) | Not confirmed | Promolayer: [Single choice](https://promolayer.io/en/form-builder/), 2026-11-05 |
| Multiple choice | Not confirmed | Not confirmed | — |
| Free text | (+0.32) | Not confirmed | Promolayer: [Free text](https://promolayer.io/en/form-builder/), 2026-11-05 |
| Consent checkbox | (+0.65) · Consent checkbox: (+0.32) · Privacy terms consent: (+0.32) | Not confirmed | Promolayer: [Consent checkbox](https://promolayer.io/en/targeting-and-segmentation/), 2026-11-05; [Consent checkbox](https://promolayer.io/en/targeting-and-segmentation/), 2026-11-05; [Consent checkbox](https://promolayer.io/en/targeting-and-segmentation/), 2026-11-05; [Consent checkbox](https://promolayer.io/en/targeting-and-segmentation/), 2026-11-05 |
| Hidden fields | Not confirmed | Not confirmed | — |
| Multi-step | No | Not confirmed | Promolayer: [Multi-step](https://promolayer.io/en/form-builder/), 2026-11-05; [Multi-step](https://promolayer.io/en/form-builder/), 2026-11-05; [Multi-step](https://promolayer.io/en/form-builder/), 2026-11-05 |
| Logic | Not confirmed | Not confirmed | — |
| Validation | (+0.65) · Validation: (+0.32) · Required fields: (+0.32) | Not confirmed | Promolayer: [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05; [Validation](https://promolayer.io/en/form-builder/), 2026-11-05 |
| CAPTCHA | Not confirmed | Not confirmed | — |
| Email double opt-in | Not confirmed | Not confirmed | — |
| Follow-up | (+1.62) · Follow-up: (+0.32) · After signup: (+0.32) · Reward email: (+0.32) · Email automation: (+0.32) · Email sequences: (+0.32) | Not confirmed | Promolayer: [Follow-up](https://promolayer.io/en/form-builder/), 2026-11-05; [Follow-up](https://promolayer.io/en/form-builder/), 2026-11-05; [Follow-up](https://promolayer.io/en/form-builder/), 2026-11-05; [Follow-up](https://promolayer.io/en/form-builder/), 2026-11-05; [Follow-up](https://promolayer.io/en/form-builder/), 2026-11-05; [Follow-up](https://promolayer.io/en/form-builder/), 2026-11-05; [Follow-up](https://promolayer.io/en/form-builder/), 2026-11-05; [Follow-up](https://promolayer.io/en/form-builder/), 2026-11-05 |
Round score: Promolayer +4.2 (total 8.06), Fomo +0 (total 1.93).
## Round 3: Surveys
Weight: 4.5 points.
Use a dropdown for the reason for a visit and a text field for the shopper’s explanation. Reporting a satisfaction index or assigning a quiz outcome would require more than these two inputs. A review or an imported form submission can supply social proof. For a new survey, establish where the visitor can answer and where the response is stored.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Numeric rating | Not confirmed | Not confirmed | — |
| NPS | Not confirmed | Not confirmed | — |
| Star rating | Not confirmed | Not confirmed | — |
| Emoji rating | Not confirmed | Not confirmed | — |
| Binary rating | Not confirmed | Not confirmed | — |
| Quizzes | Not confirmed | Not confirmed | — |
Round score: Promolayer +0 (total 8.06), Fomo +0 (total 1.93).
## Round 4: Gamification
Weight: 4.5 points.
The wheel assigns odds and an outcome to each slice, including a losing slice. A merchant can distinguish a fixed code created in Shopify from a new discount generated for the winner. Stock and activity notices give a shopper a reason to act without playing a game. A prize draw requires a separate way to collect the entry and award the incentive.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Spin the wheel | (+0.79) · Spin the wheel: (+0.26) · Prize weights: (+0.26) · Losing slices: (+0.26) | Not confirmed | Promolayer: [Spin the wheel](https://promolayer.io/en/spin-to-win/), 2026-11-05; [Spin the wheel](https://promolayer.io/en/spin-to-win/), 2026-11-05; [Spin the wheel](https://promolayer.io/en/spin-to-win/), 2026-11-05 |
| Slot machine | Not confirmed | Not confirmed | — |
| Plinko | Not confirmed | Not confirmed | — |
| Lottery ball | Not confirmed | Not confirmed | — |
| Claw machine | Not confirmed | Not confirmed | — |
| Scratch card | Not confirmed | Not confirmed | — |
| Pick a gift | Not confirmed | Not confirmed | — |
| Pick a card | Not confirmed | Not confirmed | — |
| Break the egg | Not confirmed | Not confirmed | — |
| Shake the tree | Not confirmed | Not confirmed | — |
| Memory cards | Not confirmed | Not confirmed | — |
| Treasure hunt | Not confirmed | Not confirmed | — |
| Learn to earn | Not confirmed | Not confirmed | — |
| Seasonal calendar | Not confirmed | Not confirmed | — |
| Daily offers | Not confirmed | Not confirmed | — |
Round score: Promolayer +0.79 (total 8.85), Fomo +0 (total 1.93).
## Round 5: Targeting
Weight: 10.8 points.
A cart addition can trigger a campaign. Item, cart value and customer-tag conditions help reserve the offer for shoppers who qualify. URL rules then narrow where they see it. Page rules determine where notifications can appear. Inventory notices belong on the relevant product page, and a minimum visitor threshold can suppress a quiet-looking count.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Page targeting | (+0.23) | (+0.23) | Promolayer: [Page targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05 · Fomo: [Page targeting](https://help.usefomo.com/article/395-troubleshooting-fomo-notifications-not-showing-a-step-by-step-guide), 2026-11-05 |
| Geo targeting | (+0.23) | (+0.23) | Promolayer: [Geo targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05 · Fomo: [Geo targeting](https://apps.shopify.com/fomo), 2026-11-05 |
| Device targeting | (+0.45) | Not confirmed | Promolayer: [Device targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Audience targeting | (+2.7) · Audience targeting: (+0.45) · New/returning visitors: (+0.45) · Referrer targeting: (+0.45) · Cart targeting: (+0.45) · Customer tags: (+0.45) · Login status: (+0.45) | Not confirmed | Promolayer: [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Audience targeting](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Behavior triggers | (+3.15) · Behavior triggers: (+0.45) · Time delay: (+0.45) · Exit intent: (+0.45) · Scroll trigger: (+0.45) · Inactivity trigger: (+0.45) · Custom event trigger: (+0.45) · Page-load trigger: (+0.45) | Not confirmed | Promolayer: [Behavior triggers](https://intercom.help/promolayer/en/articles/13163972-triggers-overview), 2026-11-05; [Behavior triggers](https://intercom.help/promolayer/en/articles/13163972-triggers-overview), 2026-11-05; [Behavior triggers](https://intercom.help/promolayer/en/articles/13163972-triggers-overview), 2026-11-05; [Behavior triggers](https://intercom.help/promolayer/en/articles/13163972-triggers-overview), 2026-11-05; [Behavior triggers](https://intercom.help/promolayer/en/articles/13163972-triggers-overview), 2026-11-05; [Behavior triggers](https://intercom.help/promolayer/en/articles/13163972-triggers-overview), 2026-11-05; [Behavior triggers](https://intercom.help/promolayer/en/articles/13163972-triggers-overview), 2026-11-05; [Behavior triggers](https://intercom.help/promolayer/en/articles/13163972-triggers-overview), 2026-11-05 |
| Click trigger | Not confirmed | Not confirmed | — |
| Scheduling | (+0.45) | Not confirmed | Promolayer: [Scheduling](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Frequency cap | (+0.23) | (+0.23) | Promolayer: [Frequency cap](https://promolayer.io/en/targeting-and-segmentation/), 2026-11-05 · Fomo: [Frequency cap](https://help.usefomo.com/article/395-troubleshooting-fomo-notifications-not-showing-a-step-by-step-guide), 2026-11-05 |
| Campaign control | (+0.45) | Not confirmed | Promolayer: [Campaign control](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
Round score: Promolayer +7.88 (total 16.73), Fomo +0.68 (total 2.6).
## Round 6: Experiments
Weight: 6.3 points.
Promolayer’s no-popup control can help estimate the effect of subsidising the purchase. Fomo’s dashboard distinguishes clicks, hovers and attributed transactions, useful when diagnosing a notice that received attention. Basic supports variants and a group that sees no popup. Keep that group when the decision concerns paying for the discount itself. Fomo documents ways to test wording, placement and timing over time. Distinguish a change in the settings from an experiment with visitors assigned to simultaneous variants.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| A/B testing | (+2.1) · A/B testing: (+0.7) · Popup tests: (+0.7) · No-popup holdout: (+0.7) | Not confirmed | Promolayer: [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05; [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05; [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05; [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05; [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05; [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05; [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05; [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05; [A/B testing](https://promolayer.io/en/ab-test/), 2026-11-05 |
Round score: Promolayer +2.1 (total 18.83), Fomo +0 (total 2.6).
## Round 7: Email & SMS
Weight: 4.5 points.
Paid follow-up can deliver a signup incentive and later messages. Check who owns the welcome email when a connected provider also receives the subscriber. Browser push has its own opt-in and reporting area. Mailchimp subscriber events travel into Fomo so they can become social proof on the storefront.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Email marketing | Not confirmed | Not confirmed | — |
| SMS marketing | Not confirmed | Not confirmed | — |
| Web push | Not confirmed | (+1.5) | Fomo: [Web push](https://apps.shopify.com/fomo), 2026-11-05 |
Round score: Promolayer +0 (total 18.83), Fomo +1.5 (total 4.1).
## Round 8: Team & sites
Weight: 4.5 points.
Professional includes two workspaces, while inviting collaborators by email starts on Plus. A second workspace and a separate client login are different purchasing decisions. Business supports unlimited websites. Account owners can invite teammates. Check which site and template a teammate is changing when several brands share an account.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Workspaces | (+1.69) · Workspaces: (+0.28) · Several sites: (+0.28) · Projects: (+0.56) · Client portfolio: (+0.56) | (+0.56) · Workspaces: (+0.28) · Several sites: (+0.28) | Promolayer: [Workspaces](https://promolayer.io/en/workspaces/), 2026-11-05; [Workspaces](https://promolayer.io/en/workspaces/), 2026-11-05; [Workspaces](https://promolayer.io/en/workspaces/), 2026-11-05; [Workspaces](https://promolayer.io/en/workspaces/), 2026-11-05 · Fomo: [Workspaces](https://apps.shopify.com/fomo), 2026-11-05; [Workspaces](https://apps.shopify.com/fomo), 2026-11-05; [Workspaces](https://apps.shopify.com/fomo), 2026-11-05; [Workspaces](https://apps.shopify.com/fomo), 2026-11-05 |
| Team | (+0.28) | (+0.28) | Promolayer: [Team](https://promolayer.io/en/workspaces/), 2026-11-05; [Team](https://promolayer.io/en/workspaces/), 2026-11-05 · Fomo: [Team](https://help.usefomo.com/article/405-how-to-add-team-members-to-your-fomo-account), 2026-11-05; [Team](https://help.usefomo.com/article/405-how-to-add-team-members-to-your-fomo-account), 2026-11-05 |
| Roles | (+0.56) | Not confirmed | Promolayer: [Roles](https://promolayer.io/en/workspaces/), 2026-11-05; [Roles](https://promolayer.io/en/workspaces/), 2026-11-05 |
Round score: Promolayer +2.53 (total 21.36), Fomo +0.84 (total 4.95).
## Round 9: Developer
Weight: 4.5 points.
Send form data out of Promolayer to a chosen callback. Feed business events into Fomo via its API or webhook. The direction matters when connecting either app to an existing analytics pipeline. A developer can trigger an existing popup from JavaScript and receive form submissions by webhook. Those operations establish storefront control and outbound data delivery. The HTTP API creates and retrieves events and manages their templates. A custom inbound webhook can also turn a payload from another service into a notification.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| HTTP API | Not confirmed | (+1.13) · HTTP API: (+0.38) · Create designs: (+0.38) · Operate campaigns: (+0.38) | Fomo: [HTTP API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [HTTP API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [HTTP API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [HTTP API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [HTTP API](https://docs.fomo.com/reference/how-it-works), 2026-11-05 |
| Browser API | (+0.19) | (+0.19) | Promolayer: [Browser API](https://intercom.help/promolayer/en/articles/13163961-how-to-use-custom-triggers), 2026-11-05 · Fomo: [Browser API](https://help.usefomo.com/article/210-embedding-fomo-in-a-javascript-only-environment), 2026-11-05 |
| Webhooks | (+0.38) | Not confirmed | Promolayer: [Webhooks](https://intercom.help/promolayer/en/articles/13191005-connecting-external-services-via-webhook), 2026-11-05 |
| MCP server | Not confirmed | Not confirmed | — |
Round score: Promolayer +0.56 (total 21.92), Fomo +1.31 (total 6.26).
## Round 10: Support
Weight: 1.8 points.
Email support is listed across the Shopify plans. Live chat starts at Enterprise, so include the support tier in the budget for a time-sensitive launch. The app includes support and a knowledge base for template variables, event eligibility and notifications that have stopped appearing.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Chat support | (+1.8) | Not confirmed | Promolayer: [Chat support](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
Round score: Promolayer +1.8 (total 23.72), Fomo +0 (total 6.26).
## Round 11: Editor & workflow
Weight: 5.4 points.
A merchant can save a draft and preview it before switching it live. Use a restricted storefront URL for reward testing because the editor preview skips coupon creation. Edit event wording separately from the theme. The Shopify theme editor offers a preview, while the Events screen shows whether data has actually reached Fomo.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Free editor | (+0.77) | Not confirmed | Promolayer: [Free editor](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Campaign drafts | (+0.77) | Not confirmed | Promolayer: [Campaign drafts](https://apps.shopify.com/promolayer), 2026-11-05 |
| Saved versions | Not confirmed | Not confirmed | — |
| AI popup assistant | Not confirmed | Not confirmed | Fomo: [AI popup assistant](https://usefomo.com/), 2026-11-05; [AI popup assistant](https://usefomo.com/), 2026-11-05; [AI popup assistant](https://usefomo.com/), 2026-11-05; [AI popup assistant](https://usefomo.com/), 2026-11-05 |
Round score: Promolayer +1.54 (total 25.26), Fomo +0 (total 6.26).
## Round 12: Data & reporting
Weight: 4.5 points.
A captured cart event is evidence that an action happened. A notification impression tells you someone saw a message about it. Neither number is the count of orders caused by a discount. Export contacts from a list to investigate the records behind signup totals. For a coupon promotion, reconcile redeemed codes and discount amounts with the store. The dashboard counts impressions, clicks, hover engagements, attributed transactions and value separately. An add-to-cart event can exist before a visitor sees its notification.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Field mapping | Not confirmed | Not confirmed | — |
| Lead export | (+0.64) | Not confirmed | Promolayer: [Lead export](https://promolayer.io/en/form-builder/), 2026-11-05 |
| Scheduled reports | Not confirmed | Not confirmed | — |
| Revenue goals | Not confirmed | (+0.64) | Fomo: [Revenue goals](https://apps.shopify.com/fomo), 2026-11-05 |
| Team notifications | (+0.64) | Not confirmed | Promolayer: [Team notifications](https://promolayer.io/en/form-builder/), 2026-11-05; [Team notifications](https://promolayer.io/en/form-builder/), 2026-11-05; [Team notifications](https://promolayer.io/en/form-builder/), 2026-11-05 |
Round score: Promolayer +1.29 (total 26.55), Fomo +0.64 (total 6.9).
## Round 13: Integrations
Weight: 4.5 points.
Choose Shopify customer creation, creation with marketing subscription or no Shopify update. Mailchimp, Klaviyo and the webhook have separate controls in the form actions. Shopify activity, reviews and imported subscriber events can populate templates. With Mailchimp the selected lists supply events to Fomo. The connection works in that direction.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Email | Mailchimp: Connect a Mailchimp account and choose the audience that receives new form submissions. Apply tags for the signup source. Confirm the subscriber’s status before using the tag to start a welcome email. Klaviyo: Authorize Klaviyo with the required keys and choose the subscriber list for the form. Check list membership before relying on a list-triggered welcome flow. (+0.25) | Not confirmed | Promolayer: [Mailchimp setup](https://intercom.help/promolayer/en/articles/15612871-how-to-connect-mailchimp), 2026-11-05; [Klaviyo setup](https://intercom.help/promolayer/en/articles/13191061-how-to-connect-klaviyo), 2026-11-05; [Signup actions and contact lists](https://promolayer.io/en/form-builder/), 2026-11-05; [Shopify feature matrix](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Google Analytics events](https://intercom.help/promolayer/en/articles/13190830-how-to-connect-google-analytics), 2026-11-05; [Webhook delivery](https://intercom.help/promolayer/en/articles/13191005-connecting-external-services-via-webhook), 2026-11-05 |
| SMS | Not confirmed | Not confirmed | — |
| CRM | Not confirmed | Not confirmed | — |
| Messaging | Not confirmed | Not confirmed | — |
| Customer lifecycle | Not confirmed | Not confirmed | — |
| Analytics | Google Analytics: Promolayer forwards display, click, submission and no-display control events for analysis in GA4. (+0.13) | Google Analytics: Fomo lists Google Analytics as a reporting integration. (+0.13) | Promolayer: [Mailchimp setup](https://intercom.help/promolayer/en/articles/15612871-how-to-connect-mailchimp), 2026-11-05; [Klaviyo setup](https://intercom.help/promolayer/en/articles/13191061-how-to-connect-klaviyo), 2026-11-05; [Signup actions and contact lists](https://promolayer.io/en/form-builder/), 2026-11-05; [Shopify feature matrix](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Google Analytics events](https://intercom.help/promolayer/en/articles/13190830-how-to-connect-google-analytics), 2026-11-05; [Webhook delivery](https://intercom.help/promolayer/en/articles/13191005-connecting-external-services-via-webhook), 2026-11-05 · Fomo: [Shopify notification settings](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05; [Mailchimp subscriber events](https://help.usefomo.com/article/307-how-to-connect-mailchimp-with-fomo), 2026-11-05; [Typeform submissions](https://help.usefomo.com/article/300-how-to-connect-typeform), 2026-11-05; [Privy signups and redemptions](https://help.usefomo.com/article/369-how-to-connect-fomo-with-privy), 2026-11-05; [Shopify App Store](https://apps.shopify.com/fomo), 2026-11-05; [Events and templates API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [Inbound webhooks](https://help.usefomo.com/article/370-how-to-set-up-custom-webhooks), 2026-11-05 |
| Advertising | Not confirmed | Not confirmed | — |
| Marketing tools | Not confirmed | Privy: Use a Privy webhook to show a signup or coupon redemption in the Fomo feed. Mailchimp: Import subscriber activity from selected Mailchimp lists into Fomo notifications. Klaviyo: Fomo lists Klaviyo among its integrations for social proof. (+0.25) | Fomo: [Shopify notification settings](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05; [Mailchimp subscriber events](https://help.usefomo.com/article/307-how-to-connect-mailchimp-with-fomo), 2026-11-05; [Typeform submissions](https://help.usefomo.com/article/300-how-to-connect-typeform), 2026-11-05; [Privy signups and redemptions](https://help.usefomo.com/article/369-how-to-connect-fomo-with-privy), 2026-11-05; [Shopify App Store](https://apps.shopify.com/fomo), 2026-11-05; [Events and templates API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [Inbound webhooks](https://help.usefomo.com/article/370-how-to-set-up-custom-webhooks), 2026-11-05 |
| Store | Shopify: Send a signup into Shopify’s customer list and add customer tags. Shopify also supplies cart conditions for display targeting. (+0.13) | Shopify: Use order and inventory data to populate templates. Enabling cart events also supplies product details for abandoned-cart messages. (+0.13) | Promolayer: [Mailchimp setup](https://intercom.help/promolayer/en/articles/15612871-how-to-connect-mailchimp), 2026-11-05; [Klaviyo setup](https://intercom.help/promolayer/en/articles/13191061-how-to-connect-klaviyo), 2026-11-05; [Signup actions and contact lists](https://promolayer.io/en/form-builder/), 2026-11-05; [Shopify feature matrix](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Google Analytics events](https://intercom.help/promolayer/en/articles/13190830-how-to-connect-google-analytics), 2026-11-05; [Webhook delivery](https://intercom.help/promolayer/en/articles/13191005-connecting-external-services-via-webhook), 2026-11-05 · Fomo: [Shopify notification settings](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05; [Mailchimp subscriber events](https://help.usefomo.com/article/307-how-to-connect-mailchimp-with-fomo), 2026-11-05; [Typeform submissions](https://help.usefomo.com/article/300-how-to-connect-typeform), 2026-11-05; [Privy signups and redemptions](https://help.usefomo.com/article/369-how-to-connect-fomo-with-privy), 2026-11-05; [Shopify App Store](https://apps.shopify.com/fomo), 2026-11-05; [Events and templates API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [Inbound webhooks](https://help.usefomo.com/article/370-how-to-set-up-custom-webhooks), 2026-11-05 |
| Product recommendations | Not confirmed | Not confirmed | — |
| Personalization | Not confirmed | Not confirmed | — |
| Reviews | Not confirmed | Judge.me, Yotpo, Stamped: Use review sources with social-proof notifications. (+0.25) | Fomo: [Shopify notification settings](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05; [Mailchimp subscriber events](https://help.usefomo.com/article/307-how-to-connect-mailchimp-with-fomo), 2026-11-05; [Typeform submissions](https://help.usefomo.com/article/300-how-to-connect-typeform), 2026-11-05; [Privy signups and redemptions](https://help.usefomo.com/article/369-how-to-connect-fomo-with-privy), 2026-11-05; [Shopify App Store](https://apps.shopify.com/fomo), 2026-11-05; [Events and templates API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [Inbound webhooks](https://help.usefomo.com/article/370-how-to-set-up-custom-webhooks), 2026-11-05 |
| Content | Not confirmed | Not confirmed | — |
| Custom forms | Not confirmed | Typeform: Turn a submitted Typeform response into a social-proof event. (+0.25) | Fomo: [Shopify notification settings](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05; [Mailchimp subscriber events](https://help.usefomo.com/article/307-how-to-connect-mailchimp-with-fomo), 2026-11-05; [Typeform submissions](https://help.usefomo.com/article/300-how-to-connect-typeform), 2026-11-05; [Privy signups and redemptions](https://help.usefomo.com/article/369-how-to-connect-fomo-with-privy), 2026-11-05; [Shopify App Store](https://apps.shopify.com/fomo), 2026-11-05; [Events and templates API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [Inbound webhooks](https://help.usefomo.com/article/370-how-to-set-up-custom-webhooks), 2026-11-05 |
| Data & validation | Not confirmed | Not confirmed | — |
| Spreadsheets | Not confirmed | Not confirmed | — |
| Automation | Shopify Flow: Shopify Flow is listed in the Shopify plan table. Make, Zapier: Receive a webhook in an automation service and route the submitted fields to another destination. The automation service handles the second step. (+0.13) | Zapier: Create notification events from connected workflows. (+0.13) | Promolayer: [Mailchimp setup](https://intercom.help/promolayer/en/articles/15612871-how-to-connect-mailchimp), 2026-11-05; [Klaviyo setup](https://intercom.help/promolayer/en/articles/13191061-how-to-connect-klaviyo), 2026-11-05; [Signup actions and contact lists](https://promolayer.io/en/form-builder/), 2026-11-05; [Shopify feature matrix](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Google Analytics events](https://intercom.help/promolayer/en/articles/13190830-how-to-connect-google-analytics), 2026-11-05; [Webhook delivery](https://intercom.help/promolayer/en/articles/13191005-connecting-external-services-via-webhook), 2026-11-05 · Fomo: [Shopify notification settings](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05; [Mailchimp subscriber events](https://help.usefomo.com/article/307-how-to-connect-mailchimp-with-fomo), 2026-11-05; [Typeform submissions](https://help.usefomo.com/article/300-how-to-connect-typeform), 2026-11-05; [Privy signups and redemptions](https://help.usefomo.com/article/369-how-to-connect-fomo-with-privy), 2026-11-05; [Shopify App Store](https://apps.shopify.com/fomo), 2026-11-05; [Events and templates API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [Inbound webhooks](https://help.usefomo.com/article/370-how-to-set-up-custom-webhooks), 2026-11-05 |
| Custom connections | Webhooks: A submitted form can send data to a configured callback URL. The Actions panel offers a test send. (+0.13) | Webhooks: Accept an external event at a Fomo webhook URL and map its payload into a notification. (+0.13) | Promolayer: [Mailchimp setup](https://intercom.help/promolayer/en/articles/15612871-how-to-connect-mailchimp), 2026-11-05; [Klaviyo setup](https://intercom.help/promolayer/en/articles/13191061-how-to-connect-klaviyo), 2026-11-05; [Signup actions and contact lists](https://promolayer.io/en/form-builder/), 2026-11-05; [Shopify feature matrix](https://promolayer.io/en/pricing/shop/), 2026-11-05; [Google Analytics events](https://intercom.help/promolayer/en/articles/13190830-how-to-connect-google-analytics), 2026-11-05; [Webhook delivery](https://intercom.help/promolayer/en/articles/13191005-connecting-external-services-via-webhook), 2026-11-05 · Fomo: [Shopify notification settings](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05; [Mailchimp subscriber events](https://help.usefomo.com/article/307-how-to-connect-mailchimp-with-fomo), 2026-11-05; [Typeform submissions](https://help.usefomo.com/article/300-how-to-connect-typeform), 2026-11-05; [Privy signups and redemptions](https://help.usefomo.com/article/369-how-to-connect-fomo-with-privy), 2026-11-05; [Shopify App Store](https://apps.shopify.com/fomo), 2026-11-05; [Events and templates API](https://docs.fomo.com/reference/how-it-works), 2026-11-05; [Inbound webhooks](https://help.usefomo.com/article/370-how-to-set-up-custom-webhooks), 2026-11-05 |
Round score: Promolayer +0.75 (total 27.3), Fomo +1.25 (total 8.15).
## Round 14: Shopify
Weight: 12.6 points.
For the incentive, check the basket before and after applying the code. For social proof, check the event’s product, freshness and eligibility on the page where the notification could appear. A generated 10% wheel prize applied automatically in our test cart. A €72 product fell to €64.80 when added after the spin. The code did not require manual entry. After we enabled cart-event collection, adding a product in the store created a captured Fomo event with the matching product link. Orders, stock and cart additions have separate controls.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| Storefront installation | Install the Shopify app for storefront campaigns and Shopify-specific targeting. (+0.39) | Enable Fomo’s social-proof app embed to show notifications in the Shopify theme. (+0.39) | Promolayer: [Shopify evidence](https://apps.shopify.com/promolayer), 2026-11-05 · Fomo: [Shopify evidence](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05 |
| Native Shopify app | Promolayer has its own Shopify App Store listing. (+0.39) | Inspect notification templates and Shopify settings for the connected store. (+0.39) | Promolayer: [Shopify evidence](https://apps.shopify.com/promolayer), 2026-11-05 · Fomo: [Shopify evidence](https://apps.shopify.com/fomo), 2026-11-05 |
| Built for Shopify | Not confirmed | Not confirmed | — |
| Shopify media assets | Not confirmed | Not confirmed | — |
| Shopify products and variants | Not confirmed | Display a product title and quantity below the chosen inventory threshold; variant grouping is configurable. (+0.79) | Fomo: [Shopify evidence](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05 |
| Shopify collections | Not confirmed | Not confirmed | — |
| Shopify discount assets | A live wheel generated a unique percentage discount on the Free Shopify plan. (+0.79) | Not confirmed | Promolayer: [Shopify evidence](https://intercom.help/promolayer/en/articles/13164735-how-to-set-up-auto-generated-coupons), 2026-11-05 |
| Shopify metafields and metaobjects | Not confirmed | Not confirmed | — |
| Shopify customer data | Use Shopify customer tags to select an audience. (+0.79) | Not confirmed | Promolayer: [Shopify evidence](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Shopify customer synchronization | Choose whether to create a Shopify customer, subscribe them to marketing or skip the Shopify update. The editor also accepts customer tags. (+0.79) | Not confirmed | Promolayer: [Shopify evidence](https://promolayer.io/en/form-builder/), 2026-11-05 |
| Shopify events and triggers | Open a display when the shopper adds a product to the cart. (+0.39) | After enabling cart events, adding an item on the Shopify storefront created a captured event with the matching product link. (+0.39) | Promolayer: [Shopify evidence](https://intercom.help/promolayer/en/articles/13164694-cart-add-trigger-overview-shopify-only), 2026-11-05 · Fomo: [Shopify evidence](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05 |
| Shopify audience and cart targeting | Set conditions on cart items, an empty cart, cart value or customer tags. (+0.39) | Show low-stock notices on the corresponding product page, based on Shopify inventory. (+0.39) | Promolayer: [Shopify evidence](https://promolayer.io/en/pricing/shop/), 2026-11-05 · Fomo: [Shopify evidence](https://help.usefomo.com/article/193-shopify-notification-settings), 2026-11-05 |
| Apply a Shopify discount | The generated wheel code applied automatically in the cart, reducing a €72 item to €64.80. (+0.79) | Not confirmed | Promolayer: [Shopify evidence](https://apps.shopify.com/promolayer), 2026-11-05 |
| Add a Shopify product to cart | Not confirmed | Not confirmed | — |
| Buy now / direct checkout | Not confirmed | Not confirmed | — |
| Shopify Flow | The Shopify-specific plan table lists Shopify Flow / Automation. Its available triggers and actions need separate confirmation. (+0.79) | Not confirmed | Promolayer: [Shopify evidence](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
Round score: Promolayer +5.51 (total 32.81), Fomo +2.36 (total 10.52).
## Round 15: Pricing
Weight: 10 points.
Shopify plans count popup impressions across the account. At monthly rates Basic covers 15,000 for $25 and adds unbranded display, experiments and follow-up email. Free includes 1,000 notifications for one site. Starter costs $25 for 8,000 on Shopify. Several eligible notifications during the same visit can each use capacity.
| Criterion | Promolayer | Fomo | Evidence |
| --- | --- | --- | --- |
| A small website (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $25 / mo · Basic. At one popup impression on each of 2,000 pageviews, Basic covers the workload. Free fits if targeting limits actual displays to 1,000. (+0.5) | $25 / mo · Starter. At one notification per pageview, 2,000 impressions fit Starter; Free covers up to 1,000. (+0.5) | Promolayer: [Shopify monthly plans](https://promolayer.io/en/pricing/shop/), 2026-11-05 · Fomo: [Shopify plans](https://apps.shopify.com/fomo), 2026-11-05 |
| Visitors explore more pages (visitors / mo: 10,000, pageviews / mo: 60,000, website: 1) | $70 / mo · Standard. At one popup impression on each of 60,000 pageviews, Standard covers the month. Fewer displays can reduce the required tier. (+0.68) | $149 / mo · Pro. At one notification per pageview, 60,000 impressions fit Pro. (+0.32) | Promolayer: [Shopify monthly plans](https://promolayer.io/en/pricing/shop/), 2026-11-05 · Fomo: [Shopify plans](https://apps.shopify.com/fomo), 2026-11-05 |
| A higher-traffic website (visitors / mo: 50,000, pageviews / mo: 100,000, website: 1) | $70 / mo · Standard. At one popup impression per pageview, 100,000 displays exactly use Standard’s monthly allowance. (+0.68) | $149 / mo · Pro. 100,000 notifications exactly use the Shopify Pro allowance. (+0.32) | Promolayer: [Shopify monthly plans](https://promolayer.io/en/pricing/shop/), 2026-11-05 · Fomo: [Shopify plans](https://apps.shopify.com/fomo), 2026-11-05 |
| Two websites on one account (visitors / mo: 10,000 total, pageviews / mo: 20,000 total, websites: 2) | Not confirmed | $75 / mo · Business. Business includes unlimited websites and 40,000 notifications, enough for one notification on each of 20,000 combined pageviews. (+1) | Fomo: [Shopify plans](https://apps.shopify.com/fomo), 2026-11-05 |
| Launch popups without vendor branding (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $25 / mo · Basic. Basic removes branding and covers up to 15,000 popup impressions. (+1) | Not confirmed | Promolayer: [Shopify monthly plans](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Run a sale or promotion (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $25 / mo · Basic. At 2,000 monthly displays a coupon campaign fits Basic. Free can serve up to 1,000 displays. (+1) | Not confirmed | Promolayer: [Shopify monthly plans](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Improve popup conversion with A/B testing (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $25 / mo · Basic. Basic includes popup A/B testing and room for 2,000 monthly displays. (+1) | Not confirmed | Promolayer: [Shopify monthly plans](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Collect data and feedback with surveys, quizzes and forms (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1) | $25 / mo · Basic. Use the two custom fields for a dropdown and a written answer. At 2,000 monthly displays the campaign fits Basic; Free covers 1,000. (+1) | Not confirmed | Promolayer: [Shopify monthly plans](https://promolayer.io/en/pricing/shop/), 2026-11-05 |
| Signup plus an automated welcome email (visitors / mo: 1,000, pageviews / mo: 2,000, website: 1, active contacts: 500, emails / mo: 1,000) | Not confirmed | Not confirmed | — |
| Popups and email marketing in one platform (visitors / mo: 5,000, pageviews / mo: 10,000, website: 1, active contacts: 500, emails / mo: 5,000) | Not confirmed | Not confirmed | — |
Round score: Promolayer +5.86 (total 38.67), Fomo +2.14 (total 12.65).
## The final score
Choose Fomo to show credible activity drawn from the store. Choose Promolayer to change the offer for a qualifying shopper. If using both, check that a stock notice and a discount invitation can share a phone screen.
| Round | Promolayer | Fomo |
| --- | --- | --- |
| Formats & content | 3.86 | 1.93 |
| Forms | 4.2 | 0 |
| Surveys | 0 | 0 |
| Gamification | 0.79 | 0 |
| Targeting | 7.88 | 0.68 |
| Experiments | 2.1 | 0 |
| Email & SMS | 0 | 1.5 |
| Team & sites | 2.53 | 0.84 |
| Developer | 0.56 | 1.31 |
| Support | 1.8 | 0 |
| Editor & workflow | 1.54 | 0 |
| Data & reporting | 1.29 | 0.64 |
| Integrations | 0.75 | 1.25 |
| Shopify | 5.51 | 2.36 |
| Pricing | 5.86 | 2.14 |
| Total | 38.67 | 12.65 |
## What matters most to you?
First, check that each tool can do the task. An absent or unconfirmed required capability means a dash with an explanation instead of a scenario score, and no winner highlight. Only qualifying tools share the points; a sole qualifier earns the full weight of each criterion it meets. 70 points go to the criteria directly related to it, and 30 to everything else. For “Popups without email marketing”, all 100 points go to the included capabilities and relevant popup pricing scenarios; unwanted features and email sending have zero weight. Both tools earn points for confirmed capabilities; unconfirmed ones earn zero. The first row keeps the original overall score.
| What matters to me | Promolayer | Fomo |
| --- | --- | --- |
| The overall feature set | 38.67 | 12.65 |
| Popups without email marketing | 43.22 | 11.54 |
| Collecting more leads | 45.03 | — · Required capability unconfirmed |
| Driving clicks and actions | 45.68 | 8.05 |
| Popups and email marketing in one service | — · Required capability unconfirmed | — · Required capability unconfirmed |
| Running campaigns for my Shopify store | 42.01 | 16.66 |
| A/B testing and measuring results | 35.68 | — · Required capability unconfirmed |
| Creating and editing campaigns with AI | — · Required capability unconfirmed | — · Required capability unconfirmed |
| Collecting data and feedback | 31.68 | — · Required capability unconfirmed |
| Working with a team or managing clients | 50.73 | 16.84 |
| Connecting AI agents to my workflow | — · Required capability unconfirmed | 28.81 |
## How the comparison works
These scores are relative to Promolayer and Fomo in this comparison. They cannot be carried over to comparisons with other products: each tool’s points depend on what the other participant offers.
1. **Relative scores, not universal ratings.** The same capability earns half the points when both tools have it, and all the points when only one does. Changing the opponent can therefore change a product’s score without changing the product itself. The review pages separately show absolute capability ratings without price.
2. **One shared pool of 100 points.** The 15 rounds cover 196 criteria. Each round has a set weight, divided equally among its criteria. These weights are our editorial choices.
3. **How features earn points.** If both products meet a criterion, they split its points equally. If only one does, it earns all of them. An unconfirmed capability earns zero. If neither qualifies, those points are not awarded, so the two totals can add up to less than 100.
4. **How prices earn points.** Ten scenarios carry 1 point each. We use the cheapest confirmed plan meeting each scenario’s traffic and feature requirements, billed monthly in USD. Equal prices split the point; a plan costing half as much earns twice the share. A free qualifying plan beats a paid one. If only one suitable plan and price are confirmed, it earns the full point.
5. **Which plans count.** Feature rounds cover capabilities across the products’ plans. The total does not describe a single subscription; the pricing scenarios identify the plan needed for each stated use case.
6. **How your priorities change the score.** A tool must first meet the task’s required capabilities. If a requirement is absent or unconfirmed, its scenario score is shown as a dash and it cannot be the winner; the status explains why. Only qualifying tools participate in point allocation and price comparisons. A sole qualifying tool earns the full weight of each criterion it meets; criteria it does not meet remain unearned. Standard priorities assign 70 points to their relevant criteria and 30 to the rest, preserving relative weights within each group. “Popups without email marketing” instead distributes all 100 points among its included criteria, preserving their relative weights and giving everything else zero. It includes lead capture, testing, reporting and external handoff. Its pricing criteria exclude email sending and feedback workloads. Included email features carry no penalty: only the required plan price counts. The evidence and scoring rules stay the same. The overall-feature row keeps the original weights.
## See also
- [Alternatives to Promolayer](https://popuppapa.com/alternatives-to-promolayer/index.md): Compare other replacements for Promolayer by the job you want to move.
- [Alternatives to Fomo](https://popuppapa.com/alternatives-to-fomo/index.md): See which parts of Fomo are worth keeping and what it would take to replace them.
- [Announcement popup tools](https://popuppapa.com/best-announcement-popup-tools/index.md): Compare simpler ways to show a message that does not need a signup.